Inner and outer ring polishing and clamping structure for bearing manufacturing

Abstract

The invention discloses an inner and outer ring grinding and clamping structure for bearing manufacturing, and relates to the technical field of bearing grinding clamps, the inner and outer ring grinding and clamping structure comprises a grinding motor, a rotating shaft and a clamp groove, the output end of the grinding motor is provided with the rotating shaft through a coupler, the clamp groove is formed in the rotating shaft, and the inner wall of the clamp groove is provided with a first sliding rail; a clamping frame body matched with the first sliding rail is installed on the inner wall of the first sliding rail, a first rack is installed at the bottom end of the clamping frame body, an inner clamping mechanism used for clamping an inner cavity of a bearing is arranged in the clamping frame body, and sliding grooves are formed in the two sides of the outer wall of the rotating shaft; the device is provided with a chain wheel transmission assembly which synchronously drives two sets of transmission shafts to rotate, and then the transmission shafts drive gears, first racks and positioning blocks to move up and down in the direction opposite to the positions of the gears and the first racks; and clamps for clamping inner and outer rings of bearings with different diameters can be conveniently and quickly switched.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing grinding jigs, and specifically relates to an internal and external ring grinding and clamping structure for bearing manufacturing. Background Technique

[0002] The grinding of the internal and external rings of bearings is an important link in the bearing production process, aiming to improve the smoothness of the internal and external rings of bearings, reduce friction, and extend the service life.

[0003] However, an invention with the application publication number: CN118893538A relates to the technical field of bearing processing, and proposes an insulating bearing internal and external ring raw material grinding device, including a top plate. A first electric push rod and a guide rod are rotatably installed below the top plate. A push plate is rotatably connected below the first electric push rod. A connecting cylinder and a first pressing component are connected below the push plate. A first spring is sleeved outside the connecting cylinder. A bracket is connected below the first spring. A fixed block is welded on the bracket. A rotating ring is rotatably connected to the fixed block. An adapter block is installed on the rotating ring. An outer ring grinding component is slidably installed on the adapter block. Through the above technical solution, the problems that the existing bearing grinding device cannot switch the grinding positions of the internal and external rings of the bearing through a single driving device, cannot switch between pressing the internal and external rings of the bearing and grinding the internal and external rings of the bearing, and cannot grind the chamfers of the internal and external rings of the bearing are solved. The internal and external ring grinding and clamping structure for bearing manufacturing has the following problems during use: the grinding and pressing structure is relatively complex, there are many springs, it is easy to malfunction, and the operation difficulty is high. Summary of the Invention

[0004] The purpose of the present invention is to provide an internal and external ring grinding and clamping structure for bearing manufacturing to solve the related problems proposed in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An internal and external ring grinding and clamping structure for bearing manufacturing, including a grinding motor, a rotating shaft, and a jig groove. The output end of the grinding motor is installed with a rotating shaft through a coupling, and a jig groove is opened inside the rotating shaft. A first slide rail is installed on the inner wall of the jig groove, and a clamping frame body adapted to the first slide rail is installed on the inner wall of the first slide rail. A first rack is installed at the bottom end of the clamping frame body. An inner clamping mechanism for clamping the inner cavity of the bearing is arranged inside the clamping frame body. Sliding grooves are opened on both sides of the outer wall of the rotating shaft, and an outer frame body is arranged on the inner wall of the sliding groove. A positioning block is installed at the bottom end of the outer frame body. An outer clamping mechanism for clamping the outer ring of the bearing is arranged inside the outer frame body. A transmission mechanism for synchronous conversion is arranged inside the rotating shaft. A rubidium magnet is installed at the top position of the rotating shaft.

[0006] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. The inner clamping mechanism includes a third motor and a third slide rail. A moving groove is opened on the inner wall of the clamping frame body, and the third slide rail is installed at the bottom end inside the moving groove. A third motor is arranged inside the clamping frame body, and a through spindle is installed at the output end of the third motor. A turntable is installed on the outer wall of the spindle, and a plurality of arc grooves are opened inside the turntable.

[0007] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. An inner ring positioning rod passing through the arc groove is arranged inside the third slide rail.

[0008] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. The outer clamping mechanism includes a second slide rail and a slider. The second slide rail is installed at the front end inside the outer frame body, and the slider is arranged inside the second slide rail. An outer ring clamping block is installed on the rear wall of the slider, and a positioning block is installed on the rear wall of the outer ring clamping block.

[0009] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. A first motor is installed on one side of the outer frame body, and a forward and reverse lead screw passing through the positioning block is installed at the output end of the first motor through a coupling. The outer wall of the forward and reverse lead screw meshes with the inner wall of the positioning block.

[0010] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. The transmission mechanism includes a transmission shaft and a gear. The transmission shafts are installed on both sides of the rotating shaft through bearings, and gears meshing with the outer walls of the first rack and the positioning block respectively are installed on the outer wall of the transmission shaft.

[0011] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. A second motor is arranged on the outer wall of the rotating shaft, and the output end of the second motor is connected to the front end of the transmission shaft through a coupling. A sprocket transmission component for providing synchronous rotation driving force is arranged on the outer wall of the transmission shaft.

[0012] A kind of inner and outer ring grinding and clamping structure for bearing manufacturing provided by this technical solution. The sprocket transmission component includes a sprocket and a chain. The sprocket is sleeved on the outer wall of the transmission shaft, and the chain is sleeved on the outer wall of the sprocket.

[0013] Compared with the prior art, the present invention provides a kind of inner and outer ring grinding and clamping structure for bearing manufacturing, which has the following beneficial effects: 1. By starting the third motor to drive the spindle to rotate, the spindle drives the turntable to rotate. The arc groove at the turntable drives the inner ring positioning rod to move left and right in the third slide rail, so that the outer wall of the inner ring positioning rod closely adheres to the position of the bearing inner ring, providing driving force for the expansion clamping of the bearing inner ring, meeting the clamping force requirements of bearings with different inner diameters, and facilitating the clamping and fixing of bearings with different inner diameters.

[0014] 2. The present invention drives the left - right screw rod to rotate by starting the first motor, so that the left - right screw rod drives the positioning block to move left and right. Then the positioning block drives the outer - ring clamping block to move left and right in the second slide rail through the slider, which is convenient for clamping and fixing bearings with different outer diameters.

[0015] 3. The present invention drives the sprocket drive assembly by starting the second motor. Thus, the sprocket drive assembly synchronously drives two groups of transmission shafts to rotate. Then the transmission shafts drive the gears to move up and down in the opposite direction to the first rack and the positioning block. When the inner clamping mechanism at the clamping frame moves upward, the outer clamping mechanism at the outer frame moves downward, which is convenient for quickly switching the fixtures for clamping the inner and outer rings of bearings with different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the main - view sectional structure schematic diagram of the present invention; Figure 2 is the top - view sectional structure schematic diagram of the present invention; Figure 3 is the top - view clamping sectional structure schematic diagram of the outer frame of the present invention; Figure 4 is the main - view structure schematic diagram of the present invention; Figure 5 is the main - view clamping structure schematic diagram of the outer frame of the present invention.

[0017] In the figure: 1. Grinding motor; 2. Rotating shaft; 3. Fixture groove; 4. First slide rail; 5. Clamping frame; 6. First rack; 7. Chute; 8. Outer frame; 9. Second slide rail; 10. Outer - ring clamping block; 11. Slider; 12. Positioning block; 13. First motor; 14. Left - right screw rod; 15. Transmission shaft; 16. Gear; 17. Second motor; 18. Sprocket drive assembly; 19. Third motor; 20. Third slide rail; 21. Turntable; 22. Arc groove; 23. Inner - ring positioning rod; 24. Main shaft; 25. Rubidium magnet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1, as Figure 1-2As shown in the figure, the present invention provides a technical solution: an inner and outer ring grinding and clamping structure for bearing manufacturing, including a grinding motor 1, a rotating shaft 2 and a fixture groove 3. The output end of the grinding motor 1 is installed with a rotating shaft 2 through a coupling, and a fixture groove 3 is opened inside the rotating shaft 2. A first slide rail 4 is installed on the inner wall of the fixture groove 3, and a clamping frame 5 adapted to the first slide rail 4 is installed on the inner wall of the first slide rail 4. A first rack 6 is installed at the bottom end of the clamping frame 5. An inner clamping mechanism for clamping the inner cavity of the bearing is arranged inside the clamping frame 5. The inner clamping mechanism includes a third motor 19 and a third slide rail 20. A moving groove is opened on the inner wall of the clamping frame 5, and the third slide rail 20 is installed at the bottom end inside the moving groove. A third motor 19 is arranged inside the clamping frame 5, and the output end of the third motor 19 is installed with a main shaft 24 passing through. A turntable 21 is installed on the outer wall of the main shaft 24, and a plurality of arc grooves 22 are opened inside the turntable 21. An inner ring positioning rod 23 passing through the arc groove 22 is arranged inside the third slide rail 20. By starting the third motor 19 to drive the main shaft 24 to rotate, the main shaft 24 drives the turntable 21 to rotate. The arc groove 22 at the turntable 21 drives the inner ring positioning rod 23 to move left and right inside the third slide rail 20, so that the outer wall of the inner ring positioning rod 23 is closely attached to the inner ring position of the bearing, providing driving force for expanding and clamping the inner ring of the bearing, meeting the clamping force of bearings with different inner diameters, and facilitating the clamping and fixing of bearings with different inner diameters.

[0020] Embodiment 2, as Figure 1-5 As shown in the figure, the present invention provides a technical solution: an inner and outer ring grinding and clamping structure for bearing manufacturing, including slide grooves 7 are opened on both sides of the outer wall of the rotating shaft 2, and an outer frame 8 is arranged on the inner wall of the slide grooves 7. A positioning block 12 is installed at the bottom end of the outer frame 8. An outer clamping mechanism for clamping the outer ring of the bearing is arranged inside the outer frame 8. The outer clamping mechanism includes a second slide rail 9 and a slider 11. The second slide rail 9 is installed at the front end inside the outer frame 8, and the slider 11 is arranged inside the second slide rail 9. The rear wall of the slider 11 is installed with an outer ring clamping block 10, and the rear wall of the outer ring clamping block 10 is installed with a positioning block 12. A first motor 13 is installed on one side of the outer frame 8, and the output end of the first motor 13 is installed with a forward and reverse lead screw 14 passing through the positioning block 12. The outer wall of the forward and reverse lead screw 14 is meshed with the inner wall of the positioning block 12. By starting the first motor 13 to drive the forward and reverse lead screw 14 to rotate, the forward and reverse lead screw 14 drives the positioning block 12 to move left and right. Then the positioning block 12 drives the outer ring clamping block 10 to move left and right inside the second slide rail 9 through the slider 11, facilitating the clamping and fixing of bearings with different outer diameters.

[0021] Embodiment 3, as Figure 1-5As shown in the figure, the present invention provides a technical solution: an internal and external ring grinding and clamping structure for bearing manufacturing, which includes a transmission mechanism with synchronous conversion inside the rotating shaft 2. The transmission mechanism includes a transmission shaft 15 and a gear 16. The two sides of the rotating shaft 2 are installed with transmission shafts 15 through bearings, and gears 16 that are respectively meshed with the outer walls of the first rack 6 and the positioning block 12 are installed on the outer walls of the transmission shafts 15. A second motor 17 is arranged on the outer wall of the rotating shaft 2, and the output end of the second motor 17 is connected to the front end of the transmission shaft 15 through a coupling. A sprocket transmission assembly 18 for providing synchronous rotation driving force is arranged on the outer wall of the transmission shaft 15. The sprocket transmission assembly 18 includes a sprocket and a chain. The outer wall of the transmission shaft 15 is sleeved with a sprocket, and the outer wall of the sprocket is sleeved with a chain. By starting the second motor 17 to drive the sprocket transmission assembly 18, the two transmission shafts 15 are synchronously driven to rotate at the position of the sprocket transmission assembly 18. Then, the transmission shaft 15 drives the gear 16 to move up and down in the opposite direction at the positions of the first rack 6 and the positioning block 12. When the internal clamping mechanism at the clamping frame 5 moves upward, the external clamping mechanism at the outer frame 8 moves downward, thereby meeting the requirements of rapid replacement, accelerating the processing speed, and meeting the manufacturing needs.

[0022] Working principle: First, connect to the external power supply. The operator can place the bearing above the rubidium magnet 25. When it is necessary to grind the outer ring, the internal clamping mechanism can be started to fix the position of the bearing. Through the suction force of the rubidium magnet 25 and the fixation of the internal clamping mechanism, the clamping force of the bearing is satisfied. When it is necessary to grind the inner ring of the bearing, the second motor 17 can be started to drive the sprocket transmission assembly 18. Then, the two transmission shafts 15 are synchronously driven to rotate at the position of the sprocket transmission assembly 18. Further, the transmission shaft 15 drives the gear 16 to be meshed with the first rack 6 and the positioning block 12. When the internal clamping mechanism at the clamping frame 5 moves downward, the external clamping mechanism at the outer frame 8 moves upward. By starting the internal and external clamping mechanisms of the outer frame 8 to fix the bearing, the structure is simple to operate, can clamp different inner and outer ring diameters, and can meet the clamping replacement requirements of the inner and outer rings.

[0023] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than to limit the protection scope of the present invention. Any simple modification or equivalent replacement made by those of ordinary skill in the art to the technical solution of the present invention does not depart from the essence and scope of the technical solution of the present invention.

Claims

1. An inner and outer ring grinding and clamping structure for bearing manufacturing, comprising a grinding motor (1), a rotating shaft (2) and a fixture groove (3), characterized in that: The output end of the grinding motor (1) is installed with a rotating shaft (2) through a coupling, and a fixture groove (3) is opened inside the rotating shaft (2). A first slide rail (4) is installed on the inner wall of the fixture groove (3), and a clamping frame body (5) adapted to the first slide rail (4) is installed on the inner wall of the first slide rail (4). A first rack (6) is installed at the bottom end of the clamping frame body (5). An inner clamping mechanism for clamping the inner cavity of the bearing is arranged inside the clamping frame body (5). On both sides of the outer wall of the rotating shaft (2), a chute (7) is opened, and an outer frame body (8) is arranged on the inner wall of the chute (7). A positioning block (12) is installed at the bottom end of the outer frame body (8). An outer clamping mechanism for clamping the outer ring of the bearing is arranged inside the outer frame body (8). A transmission mechanism for synchronous conversion is arranged inside the rotating shaft (2). A rubidium magnet (25) is installed at the top end position of the rotating shaft (2).

2. The internal and external ring grinding and clamping structure for bearing manufacturing according to claim 1, characterized in that: The inner clamping mechanism includes a third motor (19) and a third slide rail (20). A moving groove is opened on the inner wall of the clamping frame body (5), and the third slide rail (20) is installed at the bottom end inside the moving groove. The third motor (19) is arranged inside the clamping frame body (5), and the output end of the third motor (19) is installed with a main shaft (24) passing through. A turntable (21) is installed on the outer wall of the main shaft (24), and a plurality of arc grooves (22) are opened inside the turntable (21).

3. The inner and outer ring grinding and clamping structure for bearing manufacturing according to claim 2, characterized in that: An inner ring positioning rod (23) passing through the arc groove (22) is arranged inside the third slide rail (20).

4. A grinding and clamping structure for the inner and outer rings in bearing manufacturing according to claim 1, characterized in that: The outer clamping mechanism includes a second slide rail (9) and a slider (11). The second slide rail (9) is installed at the front end inside the outer frame body (8), and the slider (11) is arranged inside the second slide rail (9). An outer ring clamping block (10) is installed on the rear wall of the slider (11), and a positioning block (12) is installed on the rear wall of the outer ring clamping block (10).

5. The inner and outer ring grinding and clamping structure for bearing manufacturing according to claim 4, characterized in that: A first motor (13) is installed on one side of the outer frame body (8), and the output end of the first motor (13) is installed with a positive and negative lead screw (14) passing through the positioning block (12). The outer wall of the positive and negative lead screw (14) is meshed with the inner wall of the positioning block (12).

6. The internal and external ring grinding and clamping structure for bearing manufacturing according to claim 1, wherein: The transmission mechanism includes a transmission shaft (15) and a gear (16). The two sides of the rotating shaft (2) are installed with the transmission shaft (15) through bearings, and a gear (16) meshed with the outer walls of the first rack (6) and the positioning block (12) respectively is installed on the outer wall of the transmission shaft (15).

7. A grinding and clamping structure for the inner and outer rings in bearing manufacturing according to claim 1, characterized in that: A second motor (17) is arranged on the outer wall of the rotating shaft (2), and the output end of the second motor (17) is connected with the front end of the transmission shaft (15) through a coupling. A sprocket transmission assembly (18) for providing synchronous rotation driving force is arranged on the outer wall of the transmission shaft (15).

8. A grinding and clamping structure for the inner and outer rings in bearing manufacturing according to claim 7, characterized in that: The sprocket transmission assembly (18) includes a sprocket and a chain. A sprocket is sleeved on the outer wall of the transmission shaft (15), and a chain is sleeved on the outer wall of the sprocket.

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